Description

24529-42501 ROCKER ARM EXHAUST: Valvetrain Guide

Diesel Engine Performance | H100, Starex & Bongo 2.5L

The 24529-42501 ROCKER ARM EXHAUST is the essential engine component designed to restore the mechanical integrity of your Hyundai or Kia D4B series diesel engine. This unit ensures maximum valve lift accuracy and superior structural integrity.

24529-42501 ROCKER ARM Fitment

  • Hyundai H100 / HR: 2.5L Diesel
  • Hyundai H1 / Starex: D4BH Engine
  • Kia Bongo III / K2500: 2.5L TCI
  • Kia K2700 / Pregio: J2/D4B Models
  • Part Number: 24529-42501

24529-42501 Technical Specs

  • Type: Exhaust Side Rocker Arm
  • Material: Forged Heat-Treated Steel
  • Feature: Precision Roller/Pivot Tip
  • Application: SOHC 8V Diesel Engines
  • Standard: OE Precision Grade

Benefits of the 24529-42501 ROCKER ARM EXHAUST

Choosing the correct replacement part is vital for preventing catastrophic valvetrain failure. Using a premium 24529-42501 ROCKER ARM EXHAUST ensures that your exhaust valves operate with factory-spec precision, preventing soot buildup and restoring engine torque. We strongly recommend browsing our Camshafts and Valve Cover Gaskets for a complete and professional head service.

Verify 24529-42501 ROCKER ARM Fitment

To ensure this exhaust rocker arm is the perfect fit for your specific 2.5L diesel engine, please contact us for professional verification using your chassis number.


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Note: Original manufacturer part numbers are for reference only; please check your engine code before purchase.

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Questions and Answers

What is the primary function of this exhaust rocker arm?
It acts as a lever that the camshaft pushes against to open the exhaust valves at the precise moment required for the engine's combustion cycle.
Which vehicles utilize the 24529-42501 ROCKER ARM EXHAUST?
It is a standard fitment for the 2.5L D4BH, D4BA, and D4BF diesel engines found in the Hyundai H100, Grace, Starex, and Kia K2500/Bongo trucks.
What are the signs of a failing exhaust rocker arm?
Common symptoms include a loud metallic tapping or "clacking" noise from the top of the engine, a noticeable loss of power, or engine misfiring due to improper valve lift.
Is this component a direct replacement for the original part?
Absolutely. This rocker arm is manufactured to meet exact OE dimensional and metallurgical specifications for a professional, drop-in fit.
Why should I check the 24529-42501 during a timing belt failure?
In many diesel engines, the 24529-42501 ROCKER ARM EXHAUST is designed to break or bend if the timing belt snaps, acting as a "mechanical fuse" to protect the pistons and valves from more severe damage.

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